Ron D Ah Loy, M.D.
Gastroenterology Internal Medicine
With over 48 years in internal medicine, Ron D Ah Loy, M.D. is a long-established gastroenterologist in Kamuela. A University of Hawaii John a. Burns School of Medicine graduate since 1978, he brings 48+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis.
At a glance
- Uses generic medications more than 37% of reporting doctors in Hawaii
- Virtual visits available — no app or travel required
Older · 6531dNPPES updated 2008-06-18 · verify on CMS
Contact & Location
Practice Location
64-5188 Kinohou St, Kamuela, HI 96743-8409
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better84.4%
Hawaii avg: 81.8 · US avg: 82.8
✓ Higher than most doctors nationally(+1.6 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
214
Unique beneficiaries
Standard volumePrescription Recipients
93
Patients prescribed
Prescriptions Written
211
Total claims
Total Medicare drug cost: $80k
Percentile rankings compared against 262 reporting peers in Hawaii.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+2%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-11%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-17%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-14%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$241 received from industry
9 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Ron D Ah Loy's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1978
University of Hawaii John a. Burns School of Medicine
48 years in practice
Senior practitioner
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
University of Hawaii John a. Burns School of Medicine (Class of 1978)
Virtual Internal Medicine Care With Ron D Ah Loy
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Ron D Ah Loy for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Kamuela required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Ron D Ah Loy
Dr. Ah Loy is listed as active in the NPI registry with telehealth listed in Kamuela, HI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (808) 887-0600.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Ron D Ah Loy
Practice Location
64-5188 Kinohou St, Kamuela, HI 96743-8409
Mailing Address
64-5188 Kinohou St, Kamuela, HI 96743-8409
This is a provider directory. Contact the office directly to schedule appointments.
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